Adaptation of the polychaete<i>Nereis diversicolor</i>to estuarine sediments containing high concentrations of heavy metals. I. General observations and adaptation to copper

Bryan, G. W.; Hummerstone, L. G.

doi:10.1017/s0025315400018014

Cited by 283 publications

(108 citation statements)

References 14 publications

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“…Exposure to Cu and Cd was shown to induce the expression of GST transcripts in many aquatic organisms (Yoshinaga et al, 2007;Lee et al, 2008;Kim et al, 2010). For example, expression of Tigriopus japonicus and Takifugu obscurus GSTs were signifi cantly induced by Cd and Cu exposure (Lee et al, 2007(Lee et al, , 2008Kim et al, 2010 (Bryan and Hummerstone, 1971). A signifi cant inhibition of GST activity was observed in Tubifex tubifex and Cyprinus carpio after exposure to 50-250 μg/L of Cu (Dautrememepuits et al, 2002;Mosleh et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Molecular cloning and differential expression patterns of sigma and omega glutathione S-transferases from Venerupis philippinarum to heavy metals and benzo[a]pyrene exposure

Zhang

Liu

et al. 2011

Chin. J. Ocean. Limnol.

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Glutathione S-transferases (GSTs) are a class of enzymes that facilitate the detoxifi cation of xenobiotics, and also play important roles in antioxidant defense. We identifi ed two glutathione S-transferase isoforms (VpGSTS, sigma GST; VpGSTO, omega GST) from Venerupis philippinarum by RACE approaches. The open reading frames of VpGSTS and VpGSTO were of 612 bp and 729 bp, encoding 203 and 242 amino acids with an estimated molecular mass of 22.88 and 27.94 kDa, respectively. The expression profi les of VpGSTS and VpGSTO responded to heavy metals and benzo[a]pyrene (B[a]P) exposure were investigated by quantitative real-time RT-PCR. The expression of VpGSTS and VpGSTO were both rapidly up-regulated, however, they showed differential expression patterns to different toxicants. Cd displayed stronger induction of VpGSTS expression with an approximately 12-fold increase than that of VpGSTO with a maximum 6.4-fold rise. Cu exposure resulted in similar expression patterns for both VpGSTS and VpGSTO. For B[a]P exposure, the maximum induction of VpGSTO was approximately two times higher than that of VpGSTS. Altogether, these fi ndings implied the involvement of VpGSTS and VpGSTO in host antioxidant responses, and highlighted their potential as a biomarker to Cd and B[a]P exposure.

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Section: Discussionmentioning

confidence: 99%

Molecular cloning and differential expression patterns of sigma and omega glutathione S-transferases from Venerupis philippinarum to heavy metals and benzo[a]pyrene exposure

Zhang

Liu

et al. 2011

Chin. J. Ocean. Limnol.

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“…Consequently, the ecological impacts of contaminants in surface runoff may become more evident when sampled across longer time scales than individual rain pulses. The impact of individual pulses of contaminants may also decrease with time, as background levels of contamination increase, resulting in constant stresses upon exposed communities, and subsequent development of resistance (Bryan andHummerstone, 1971, Shavyrina et al, 2001). Further research is required in order to link the findings of laboratory based stormwater toxicity tests with the results obtained from field monitoring programs.…”

Section: Discussionmentioning

confidence: 99%

MBACI sampling of an episodic disturbance: Stormwater effects on algal epifauna

Roberts

Poore

Johnston

2007

Marine Environmental Research

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“…Brkovic-Popovic and Popovic (1977) Khangarot, 1991;Fargasova, 1994;Reynoldson et al, 1996, Milani et al, 2003, what shows that the little difference in test conditions may significantly influence the results. Several authors found that worms with a long-term history of exposure to a metal were more tolerant when they were further exposed (Bryan and Hummerstone, 1971;Pesch and Hoffman, 1982;Reinecke et al, 1999). Cd toxicity for Tubifex depends on environmental parameters (water or sediments environment, pH, O2 saturation, water hardness).…”

Section: Discussionmentioning

confidence: 99%

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Luszczek-Trojnar¹,

Sroka²,

A.³

et al. 2014

Turk. J. Fish. Aquat. Sci.

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This study compared accumulation of cadmium (Cd) in Tubifex worms (Tubifex tubifex) during exposure to different doses of the metal (0.9 and 2.5 mg/kg) in bottom sediments and in water (0.9 and 2.5 mg/l). Elimination of Cd from these invertebrates by prior exposure was also examined. Cd concentration in water, sediments and worms was analysed by Atomic Absorption Spectroscopy (AAS) method.The results showed higher sensitivity of Tubifex worms to Cd concentration in water (Concentration factors from 16 to 60) than bottom sediments (CF from 0.44 to 0.77). Cd bioaccumulation in worms was positively correlated with its dose and exposure duration (0.88 to 0.94). The highest level of Cd in worms (150 mg/kg) was observed after two days of exposure in water to 2.5 mg Cd/L. The results of purification that was studied the first time after the previous exposure to Cd showed that Tubifex tubifex rapidly reduced Cd concentration (from 28.5 to 0.13 mg/kg) in 3 days after exposure cessation.The results indicate that it is possible to purify Tubifex worms taken from a population existing in contaminated environment to obtain safe food for aquarium fish. Additionally, Tubifex worms can be considered as an ideal cumulative bioindicator of Cd in the water environment.

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Adaptation of the polychaeteNereis diversicolorto estuarine sediments containing high concentrations of heavy metals. I. General observations and adaptation to copper

Cited by 283 publications

References 14 publications

Molecular cloning and differential expression patterns of sigma and omega glutathione S-transferases from Venerupis philippinarum to heavy metals and benzo[a]pyrene exposure

Molecular cloning and differential expression patterns of sigma and omega glutathione S-transferases from Venerupis philippinarum to heavy metals and benzo[a]pyrene exposure

MBACI sampling of an episodic disturbance: Stormwater effects on algal epifauna

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